Using Winter Tyres; Using Snow Chains; Tyre Pressure Monitoring System - Ford Focus Owner's Handbook Manual

USING WINTER TYRES

CAUTION
Make sure that you use the correct
wheel nuts for the type of wheel the
winter tyres are fitted to.
If winter tyres are used, make sure that
the tyre pressures are correct. See
Technical specifications (page 224).

USING SNOW CHAINS

WARNINGS
Do not exceed 50 km/h (30 mph).
Do not use snow chains on
snow-free roads.
Only fit snow chains to specified
tyres. See Technical
specifications (page 224).
CAUTION
If your vehicle is fitted with wheel
trims, remove them before fitting
snow chains.
Note: The ABS will continue to operate
normally.
Only use small link snow chains.
Only use snow chains on the front wheels.
Vehicles with stability control
(ESP)
Vehicles with stability control (ESP) may
exhibit some unusual driving
characteristics which can be avoided by
switching the system off. See Using
stability control (page 142).
Wheels and tyres
TYRE PRESSURE
MONITORING SYSTEM
Under-inflation reduces fuel efficiency,
tyre tread life and may also affect your
ability to drive the vehicle safely.
The Deflation Detection System will alert
you if there is a change of air pressure in
any tyre. It does this by using the ABS
sensors to detect the rolling
circumference of the wheels. When the
circumference changes, this indicates low
pressure in a tyre, a warning message is
displayed in the information display and
the message indicator will illuminate. See
Information messages (page 91).
Apart from a too low tyre pressure or a
damaged tyre, the following situations can
affect the rolling circumference:
•
•
•
•
223
WARNINGS
The system does not relieve you of
your responsibility to regularly check
the tyre pressures.
The system will only provide a low
tyre pressure warning. It will not
inflate the tyres.
Do not drive on significantly
under-inflated tyres. This may cause
the tyres to overheat and fail.
CAUTIONS
Do not bend or damage the valves
when you are inflating the tyres.
Have tyres installed by properly
trained technicians.
Vehicle load is uneven.
When using a trailer or travelling up
and down an incline.
Using snow chains.
Driving on soft surfaces such as snow
or mud.